Devices for endovascular access through extracorporeal life support circuits

Abstract

Adaptors, cannulas, caps, tube couplers, and systems thereof provide endovascular access through an established ECLS system. Adaptors having curved or angled shafts navigate right angle side ports of standard bypass cannulas and permit hemostatic introduction and direction of an intervention device to the axial flow path of the cannula lumen and bypass system. A modified cannula having an angled side port is also provided for use as an arterial cannula. A cap having an occluding surface may be inserted into the angled side port to prevent blood from stagnating in the angled side port. A tube coupler is also provided having an access port, such as an angled access port, and may be spliced into an established bypass system for vascular access point. Multiple couplers can be used to provide multiple access points. The adaptors and occlusive cap are interchangeable with each other and with secondary circuits.

What is claimed is: 
     
       1. A system for vascular flow with peripheral occlusion, comprising:
 a tube coupler having;
 (I) a coupler body having first and second end openings selectively mating to independent tube sections; 
 (ii) a coupler lumen extending within said coupler body between said end openings defining an axial flow path; 
 (iii) an access port including an access port channel providing exterior access to said coupler lumen; 
 
 an insertion cap having a shaft inserted in said access port channel, providing exterior access to said coupler lumen, said shaft including an insertion lumen to receive an intervention device inserted therein and modify an angle of insertion of said intervention device through said insertion lumen and directing said intervention device within said coupler lumen consistent with the axial flow path; and 
 said insertion cap further comprising a side arm extending from said insertion cap and having a side arm passage in fluid communication with said insertion lumen and said coupler lumen to selectively vent air from said system. 
 
     
     
       2. The system according to  claim 1 , wherein said access port is at least one of a right angle access port and an angled access port. 
     
     
       3. The system according to  claim 1 , wherein said insertion cap includes a connector selectively restraining said insertion cap to said access port. 
     
     
       4. The system according to  claim 3 , wherein said connector is at least one of a floating Luer connector and a fixed Luer connector.